A web-footed bird, of the genus Diomedea, of which there are several species. They are the largest of sea birds, capable of long-continued flight, and are often seen at great distances from the land. They are found chiefly in the southern hemisphere.
- Any of several large web-footed birds constituting the family Diomedeidae, chiefly of the oceans of the Southern Hemisphere, and having a hooked beak and long narrow wings.
- A constant, worrisome burden.
- An obstacle to success.